Garbage loading assembly for trucks



April 8, 1952 P. M. OLIVER 2,592,324

GARBAGE LOADING ASSEMBLY FOR TRUCKS Filed Sept. 5, 1950 2 SHEETS-SHEET l IN VENTOR April 1952 P. M. OLIVER GARBAGE LOADING ASSEMBLY FOR TRUCKS 2 SHEETSSHEET 2 Filed Sept. 5, 1950 I N VE NTOR ATTORNEYS Patented Apr. 8, r952 .25: 'I '1 GARBAGE LOADING ASSEMBLY FOR TRUCKS a Paul M. Oliver, East Point, Ga., als's'ign'or' of onethird to William 0. Matthews, Atlanta, Ga., and

one-third to Paul E. Oliver, Knoxville, Tenn.

. Application September 5, 1950, Serial No.-183,210

. 1 'Ihisinvention relates to material handling, and is primarily a' means for quickly raising and dumping a container of cylindrical or other shape, such as a thirty gallon trash can,- or an oildrum, into a large capacity truck body.

The principal object of the invention is to provide handling meanswhich will not only speed-up the collection of garbage or the like, but will also eliminate the possibility of physical injury to the collector of such material, through the fact that manual lifting of thecontainer for dumping is unnecessary, said means comprising mechanism for lowering a platform to the ground, whereupon a container of material maybe set thereon and locked in a fixed position. The platform with the container thereon may be then raised by said mechanical means and dumped into the truck or' container upon which the lifting mechanism is mounted. The platform with the container thereon may then be lowered quickly to the ground, the locking device unlocked, and the container rolled from the platform to any desired position on the ground. The operation of my handling means eliminates manual handling of the material, and dumping can be accomplished with less than half the man-' power which would be necessary to' handle the same volume of material in a greater length of time.

I will explain the invention with reference to the accompanying drawings, which illustrate one practical embodiment thereof, to enable others to adopt and use the same, and will summarize in the claims the novel features of construction and novel combination of parts for which protection is' desired.

In said drawings:

Fig. 1 is a vertical section through a truck showing my novel handling means applied thereto.

' Fig. 2 is a side elevation thereof.

Fig. 3 is a vertical section on the line 33, of Fig. 2.

In Fig. 1, numerals l and la denote the outer and inner channels of the guides for the dumping frame of the unit, the open faces of the channels of one guide opposing those of the other. The channels I--la of each guide are disposed side by side as shown in Fig. 1, and are suitably tied together so as to insure suflicient rigidity to withstand the dumping operation. The guide channels l-Ia are mounted vertically in spaced relation on the side of the body l3 of the truck or other vehicle, the lower ends of the channels terminating below the body I3 and the inner 4 claims; (01. 214-457) channels m extending somewhat below the outer channels I; and the lower ends of each channel curved approximately to overlie the top of body It while the upper end of outer channel I is similarly curved at agreater radius to overlie the upper end of channel La and to be spaced above same, as shown in Fig. 2, bracket plates lc connecting the backs of the channels |-.-la. The upper ends of the channels are likewise boxed or closed. v The dumping frame is composed of structural channels or angles of sufficient strength. .The dumping frame consists of side channels 2 -2 having their open faces opposing each other, said channels being disposed between the pair of guide channels I---I0t. At the lower end of the channels 21 is a vertical plate 14 rigidly securing the channels 2 together to form a U-shaped unit, and a platform 8 is hingedly secured to the lower ends of the channels} and adapted to be swung from operative horizontal position shown in Fig. 1, into inoperative upright position when not in use. Offset from the upper end of each channel 2 of the dumping frame is a roller 3 which rolls in channel la,- said roller being of shape to conform with the inside contour of channelldl A teach sideof the dumping frame below and in front of the; roller 3 is a shaft which carries a roller 5-. through the channel 2 of the dumping frame for a distance suificient to form a journal for a pivot arm 6. The pivot arms 6 at each side of the frame are tied together by means of a suitable crossmember 661 (Fig. 2). At the lower ends of pivot :arms 6v are mounted shafts upon which are journaled rollers 4 which operate in channels Ia.

A locking device I is movable up and down on,

the dumping frame for locking containers C of various heights to said frame. The lock 1 may be operated by means of a gear and ratchet (not shown), or other suitable means. Platform 8 upon which containers C are rolled prior to looking is so constructed that same may fold upwardly when not in use, and thereby align itself with the outer face of the dumping frame.

Upon lowering the dump-ing frame to the ground, the platform 8 automatically releases itself by means of a slotted hinge connection l5 The shaft of roller 5 continues;

and falls outwardly into horizontal position ready for loading thereon a container C.

In Fig. 2 the operation is clearly shown. A cross member 9 of suitable strength holds the parallel guide channels l--la spaced apart and rigid, and also serves as a supporting member for an hydraulic cylinder l2. Roller chains I are anchored at their upper ends to cross member 9 as shown in Fig. 3, and at their lower ends to pivot arms at points coaxial with rollers 4. Sprockets II are mounted on the ends of a shaft I l a in alignment with roller chains l0, and transmit power through roller chains In to the pivot arms 6. Shaft Ila is carried by a piston rod I2a which is actuated by a piston in the cylinder I! which latter is fixedly supported on the channel frame l-la9 by a bracket 122) or the like, so that when fluid under pressure is delivered into the lower end of cylinder I2 below the piston the rod lZa will be raised, thereby raising shaft II a and sprocket wheels II, and thus raising the dumping frame 22l4 by means ofchains l0;

As cylinder i2 is pressurized, roller chains l0 move the pivot arm assembly 65a2 upwardly at a speed which is twice that of the pistons travel. Roller 3 (Fig. 1) moves upwardly with the dumping frame into the curved portion of channel la as shown in dotted lines in Fig. 1 where it stops against closed end of channel I a. At the same time roller 5 moves upwardly with the dumping frame and load C. When rollers 3 (Fig. 1) come to rest at the tops of channel la, as cylinder piston and rod l2a continue their upward travel, pivot arm assembly 6 carries rollers 4 into position shown in dotted lines in Fig. 1, wherein rollers 4 are disposed in channels Ia near roller 3, and rollers 5 which are mounted on the dumping frame travels around the uppermost arc of channels 'I a distance equal to the distance from the centers of rollers 3 to the centers of rollers 5. When rollers 5 have completed their travel around the arcs of channels I and stop against the closed ends thereof, the dumping frame will have been tilted to such angle that same will spill the contents of container C into the truck body I4 as shown in dotted lines in' Fig. 1.

With the reversal of'operation of cylinder I2 the action of the movable parts are reversed. and the dumping frame will be returned to the ground level.

I do not limit my invention to the exact form shown in-the drawings, for obviously changes may be made therein within the scopeof the claims.

- I claim:

1. In a material handling assembly for vehicles or the like having a material receiving body, a pair of opposed spaced guides vertically mounted on the said body, each guide comprising inner and outer channels secured together edge to edge with their open faces disposed in opposed relation, the said channels being closed at their upper and lower ends, and their lower ends terminating below the said body; the upper ends of the inner channels curving over the top of the said body, and the upper ends of the outer channels overlying and being spaced from the upper ends of the inner channels; a dumping frame having a platform at its lower end adapted to hold a container; means for securing said container thereon; a set of rollers carried by the upper ends of the frame running in said inner guide channels; a second set of rollers on the frame below the first set and rumiing in the outer guide channels; athird set of rollers below the second set in the inner guide channels; arms pivoted on the frame coaxially of the second set of rollers in which the third set of rollers are journaled; and means for raising the third set of rollers to raise the frame to the upper ends of the guide channels;thereby tilting the dumping frame and container over the top of the truck body.

2. Inan assembly as set-forth in claim 1, the spacing between the upper ends of the guide channels being equal to the spacing between the firstand second sets of rollers.

3. In an assembly as set-forth in claim 1, said dumping frame comprising side members connected together at their lower ends by a transverse plate; said platform being hingedly connected to the lower ends of the side members; and means for normally maintaining the platform disposed at right angles to the dumping frame, saidmeans permitting the platform to be swung upwardly into aligmnent with the said frame.

4. In an assembly as set forth in claim 1, said raising means comprising an hydraulic cylinder on the truck body having a vertically movable piston rod disposed intermediate the guide chan nels; a cross shaft on said piston rod; sprockets on said shaft; and chains running over said sprockets and having one end secured to the truck body and their other ends secured to the dumping frame adjacent the third set of rollers, whereby movement of the piston will cause the dumping frame to move through a double amount.

PAUL M. OLIVER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS 

